US2021202804A1PendingUtilityA1

Display device

Assignee: PLAYNITRIDE DISPLAY CO LTDPriority: Dec 25, 2019Filed: Jul 13, 2020Published: Jul 1, 2021
Est. expiryDec 25, 2039(~13.4 yrs left)· nominal 20-yr term from priority
H10W 90/00H10K 59/8792H10H 20/855H10H 20/0364H10H 20/0363H10H 20/0361H10H 20/857H10H 20/851H01L 33/62H01L 25/0753H01L 2933/0041H01L 2933/0066H01L 2933/0058H01L 33/58H01L 33/50H10K 59/38
46
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Claims

Abstract

A display device including a substrate, a circuit layer, a plurality of light-emitting devices, a first patterned light-absorbing layer, and a second patterned light-absorbing layer is provided. The circuit layer is disposed on the substrate. The light-emitting devices are distributed over the circuit layer. The first patterned light-absorbing layer is disposed on the circuit layer and located beside the light-emitting devices. The second patterned light-absorbing layer is disposed on the first patterned light-absorbing layer. A thickness of the second patterned light-absorbing layer is greater than a thickness of the first patterned light-absorbing layer. An optical density of the first patterned light-absorbing layer is greater than an optical density of the second patterned light-absorbing layer under a same thickness condition.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A display device, comprising:
 a substrate;   a circuit layer, disposed on the substrate;   a plurality of light-emitting devices, distributed over the circuit layer;   a first patterned light-absorbing layer, disposed on the circuit layer, and located beside the light-emitting devices; and   a second patterned light-absorbing layer, disposed on the first patterned light-absorbing layer, wherein a thickness of the second patterned light-absorbing layer is greater than a thickness of the first patterned light-absorbing layer, an optical density of the first patterned light-absorbing layer is greater than an optical density of the second patterned light-absorbing layer under a same thickness condition.   
     
     
         2 . The display device as claimed in  claim 1 , further comprising:
 a plurality of quantum dot layers, respectively disposed on a part of the light-emitting devices.   
     
     
         3 . The display device as claimed in  claim 2 , wherein the light-emitting devices are micro light-emitting diodes. 
     
     
         4 . The display device as claimed in  claim 1 , wherein at least a part of the first patterned light-absorbing layer is located between the light-emitting devices. 
     
     
         5 . The display device as claimed in  claim 1 , wherein the thickness of the first patterned light-absorbing layer is smaller than 2 μm. 
     
     
         6 . The display device as claimed in  claim 1 , wherein the optical density of the first patterned light-absorbing layer is greater than 3. 
     
     
         7 . The display device as claimed in  claim 2 , wherein the thickness of the second patterned light-absorbing layer is greater than 5 μm. 
     
     
         8 . The display device as claimed in  claim 7 , wherein the optical density of the second patterned light-absorbing layer is greater than 2. 
     
     
         9 . The display device as claimed in  claim 1 , wherein the thickness of the first patterned light-absorbing layer is smaller than a thickness of the light-emitting devices. 
     
     
         10 . The display device as claimed in  claim 1 , wherein the light-emitting devices are organic light-emitting diodes. 
     
     
         11 . The display device as claimed in  claim 2 , further comprising:
 a third patterned light-absorbing layer, disposed on the second patterned light-absorbing layer, wherein the second patterned light-absorbing layer and the third patterned light-absorbing layer have a plurality of openings exposing the light-emitting devices, and the quantum dot layers are disposed in the openings.   
     
     
         12 . The display device as claimed in  claim 11 , wherein a thickness of the third patterned light-absorbing layer is greater than the thickness of the first patterned light-absorbing layer. 
     
     
         13 . The display device as claimed in  claim 11 , wherein under a condition of a same thickness, the optical density of the first patterned light-absorbing layer is greater than an optical density of the third patterned light-absorbing layer.

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